User blog:Bestname2017/Ideas for a new team

I have started making a new team about a month ago. I got 3 new pokemon and I kept the rest of my team the same. Not too long ago I got rid of manaphy for alakazam because I already had a sweeper. I think I should still get new pokemon / replace others. what do YOU think about myteam right now?

My team
Mega Blaziken (Main sweeper)

item : blazikenite

Nature : Adamant

trait : Speed boost

Moves : Blaze kick, Brick break , Protect and Aerial ace

EVs : 252 Speed and 252 Attack (I think cuz I don't have the gamepass)

Sceptile (Backup sweeper cuz of the high speed and attack)

item : Weakness policy

Nature : Adamant

trait : Overgrow

Moves : Dragon claw, Leaf blade , Night slash and X-sisscor

EVs : 252 Speed and 252 Attack

Halloween Gengar (backup mega)

Item : Gengarite / Leftovers (Thinking about getting focus sash for it)

Nature : Quirky 

trait : Cursed body

Moves : Shadow ball, Sludge bomb , Thunderbolt , Dark pulse

'''EVs : 252 Speed, ??? Attack, ??? Defense and (around) 248 Special attack'''

Lucario (still in training)

item : Black belt

Nature : Modest

trait : Inner focus

Moves : Aura sphere, Flash cannon , Shadow ball and Calm mind

EVs : (still EV training)

Alakazam (still in training)

item : Mind plate (till I find something good for it)

Nature : Serious

trait : Inner focus 

Moves : Shadow ball, Focus blast , psybeam (still need to get psychic) and Recover

EVs : 252 Speed and (around) 95 Special attack

Hearth tail pikachu (it has the same stats as a raichou and to back up my blaziken in doubles)

item : Light ball (boosts pikachu's stats)

Nature : Naive

trait : Static

Moves : Nuzzle, Thunderbolt , Hidden power (fire) and grass knot (I need to get volt switch)

EVs : nothing (I haven't even done a normal battle with it)

comment ur ideas aboout what should I change and what items I should get for gengar, alakazam and lucario. (I actually have lucarionite and alakazite too).